Lamp



FIG. 1 is a perspective view of a lamp, showing our new design;

FIG. 2 is a rear elevational view thereof on an enlarged scale;

FIG. 3 is side elevational view thereof on an enlarged scale; the opposite side being a mirror image;

FIG. 4 is a top plan view thereof of an enlarged scale; and,

FIG. 5 is a bottom plan view thereof on an enlarged scale. 

The ornamental design for a lamp, as shown and described. 